CN220720174U - Plastic part injection molding device based on bending and barb adding - Google Patents
Plastic part injection molding device based on bending and barb adding Download PDFInfo
- Publication number
- CN220720174U CN220720174U CN202322453300.2U CN202322453300U CN220720174U CN 220720174 U CN220720174 U CN 220720174U CN 202322453300 U CN202322453300 U CN 202322453300U CN 220720174 U CN220720174 U CN 220720174U
- Authority
- CN
- China
- Prior art keywords
- air
- cavity
- barb
- needle
- plastic part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005452 bending Methods 0.000 title claims abstract description 22
- 238000001746 injection moulding Methods 0.000 title claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 15
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000007664 blowing Methods 0.000 abstract description 4
- 230000006378 damage Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model relates to a plastic part injection molding device based on bending and barb adding, which comprises a front mold arranged on the lower side of a panel, a front mold core embedded in the lower part of the front mold, a rear mold arranged on the lower side of the front mold, a rear mold core arranged on the upper part of the rear mold, and a product mold cavity arranged between the front mold core and the rear mold core, wherein the product mold cavity comprises at least two stepped transverse cavity channels, a plurality of upward cavity channels and a plurality of downward cavity channels, the lower end of one of the outer downward cavity channels is an inverted hook-shaped cavity channel, and a plurality of air needle mechanisms are arranged in the front mold core and the front mold on the upper side of the transverse cavity channels. A plurality of air collecting cavities are designed in the air needle mechanism, so that the air needle and the air blowing mode have larger thrust, the plastic part can be ensured not to be adhered to the front mould, and meanwhile, the surface of the plastic part can be ensured not to be propped against the front end of the air needle, so that the appearance quality of a product is ensured.
Description
Technical Field
The utility model relates to the technical field of product molds, in particular to a plastic part injection molding device based on bending and barb adding.
Background
In order to expand the requirement of company plastic shell product appearance diversification, a novel plastic shell product is designed, the plastic shell product contains a plastic part which is bent upwards and downwards in multiple stages and is provided with a barb at one side end part, the plastic part which is bent and added with the barb is stuck to a front mold and cannot be taken down when the plastic part is demoulded in a test mold, and the production of the plastic part is influenced. In order to solve the technical problem, the scheme provides a plastic part injection molding device based on bending and barb adding.
Disclosure of Invention
The utility model aims to solve the problem that a plastic part with a barb cannot be taken down when being bent and released from a front die. The specific solution scheme is as follows:
plastic part injection molding device based on add barb of bending, including locating the front mould of panel downside, inlay and locate the front mould core of lower part in the front mould locates the back mould of front mould downside locates the back mould core of upper portion in the back mould be equipped with the product die cavity between front mould core, the back mould core, the product die cavity includes the horizontal chamber way of two at least ladders, and a plurality of upward chamber way, downward chamber way, and the lower extreme of one of them outside down chamber way is the barb shape chamber way the upside of horizontal chamber way the inside of front mould core and front mould is equipped with a plurality of gas needle mechanisms.
Further, the plurality of air needle mechanisms comprise a common input end, a common main air passage, a plurality of air dividing passages, a plurality of air needle assemblies and a plurality of air grooves.
Further, the input end comprises an air pipe joint and a joint groove which is arranged on one side of the front die and is concave inwards.
Further, the joint groove is of a T-shaped column structure with a large outer part and a small inner part, and the joint groove is matched with the air pipe joint.
Further, the inner end of the joint groove is communicated with one end of the main air passage, and the main air passage is horizontally arranged in the front die.
Further, the plurality of air dividing passages are vertically communicated with the main air passage at intervals, the upper ends of the air dividing passages are communicated with the main air passage, and the lower ends of the air dividing passages are flush with the upper surface of the front mold core.
Further, the air needle assembly comprises an air needle tail end, an air needle rod body, an air needle front end, a sealing ring arranged on the upper side of the air needle tail end and a spring sleeved on the upper portion of the air needle rod body.
Further, concave strip-shaped grooves are formed in two sides of the lower portion of the air needle rod body, the front end of the air needle is a round table, and concave annular grooves are formed in the periphery of the round table and the lower end of the air needle rod body.
Further, a spring cavity matched with the spring and the tail end of the air needle, an air needle cavity matched with the air needle body and an air collecting cavity matched with the strip-shaped groove and the annular groove are arranged in the front mold core, and the air groove is formed by the spring cavity, the air needle cavity and the air collecting cavity. And a sealing groove is arranged on the surface of the front mould between the upper end of the spring cavity and the port at the lower end of the air dividing channel, and the sealing ring is arranged in the sealing groove.
Further, the outer sides of the upper steps of the two-step transverse cavity channels are respectively communicated with one upward cavity channel and one downward cavity channel, the outer sides of the lower steps of the two-step transverse cavity channels are respectively communicated with the other upward cavity channel and the other downward cavity channel, the lower ends of the downward cavity channels are communicated with the barb-shaped cavity channels, and the interface between the upper steps and the lower steps is communicated with the third downward cavity channel; the upper surface of the upper ladder is respectively connected with the lower ports of the two air collecting cavities, the upper surface of the near outer side of the lower ladder is connected with the lower port of one air collecting cavity, and the end face of the front end of the air needle can penetrate out of the lower port of the air collecting cavity to contact the upper surfaces of the upper ladder and the lower ladder.
In summary, the technical scheme of the utility model has the following beneficial effects:
the utility model solves the problem that the plastic part with the bent barbs cannot be taken down when being stuck in the front mould during demoulding. According to the special structure of the plastic part with the barb and bending, a plurality of air needle mechanisms are arranged in the front mold core and the front mold at the upper side of the transverse cavity channel of the product mold cavity, a plurality of air collecting cavities (the air collecting cavities are combined with the air collecting cavities to collect air and blow downwards through the strip-shaped grooves and the annular grooves) are designed in the air needle mechanisms, and the air collecting cavities have two functions: one is to make the air needle front end terminal surface can wear out the lower port of gas collection chamber and contact downwards and promote the upper surface of product die cavity, another is to blow to the upper surface of product die cavity from the lower port of gas collection chamber simultaneously, the mode of air needle + blowing has bigger thrust like this, can ensure that the plastic part can not with the front mould adhesion, can guarantee simultaneously that the plastic part surface can not be by the air needle front end top injury again, thereby ensured product appearance quality, this scheme has simple structure, reasonable in design, work efficiency is high, do not harm the product outward appearance, guarantee the advantage of bending plastic part smooth production with the barb.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present utility model, the drawings that are required to be used in the description of the embodiments of the present utility model will be briefly described below. It will be apparent to those skilled in the art that the drawings in the following description are only a few embodiments of the present utility model and that other drawings may be derived from these drawings without inventive faculty.
FIG. 1 is a cross-sectional view of a plastic part injection molding apparatus based on bending and barb addition according to the present utility model, wherein a rear mold and a rear mold core are not shown;
FIG. 2 is an enlarged view of area A of FIG. 1;
FIG. 3 is an exploded view of the air cap mechanism, front mold core of the present utility model;
fig. 4 is a sectional view of the air cap mechanism and the front mold core according to the present utility model.
Reference numerals illustrate:
the mold comprises a front mold, a front mold core, a 3-product mold cavity, a 4-main air passage, a 5-branch air passage, a 6-air pipe joint, a 7-joint groove, an 8-air needle tail end, a 9-air needle rod body, a 10-air needle front end, an 11-sealing ring, a 12-spring, a 13-strip-shaped groove, a 14-annular groove, a 15-sealing groove, a 21-spring cavity, a 22-air needle cavity, a 23-gas collecting cavity, a 31-transverse cavity, a 32-upward cavity, a 33-downward cavity, a 34-reverse hook-shaped cavity, a 311-upper step and a 312-lower step.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1 to 4, the plastic injection molding device based on bending and barb adding comprises a front mold 1 arranged at the lower side of a panel (not shown in the drawings), a front mold core 2 embedded at the lower part in the front mold 1, a rear mold (not shown in the drawings) arranged at the lower side of the front mold 1, a rear mold core (not shown in the drawings) arranged at the upper part in the rear mold, a product mold cavity 3 arranged between the front mold core 2 and the rear mold core, wherein the product mold cavity 3 comprises a transverse cavity channel 31 with at least two steps, a plurality of upward cavity channels 32 and a downward cavity channel 33, the lower end of one of the downward cavity channels 33 at the outer side is a barb-shaped cavity channel 34, and a plurality of air needle mechanisms are arranged in the front mold core 2 and the front mold 1 at the upper side of the transverse cavity channel 31.
Specifically, the plurality of air needle mechanisms comprise a common input end, a common main air passage 4, a plurality of air dividing passages 5, a plurality of air needle assemblies and a plurality of air grooves.
Specifically, the input end comprises an air pipe joint 6 and a joint groove 7 which is arranged on one side of the front die 1 and is concave inwards.
Specifically, the joint groove 7 is a T-shaped column structure with a large outside and a small inside, and the joint groove 7 is matched with the air pipe joint 6. The inner end of the joint groove 7 is tightly matched with the rear part of the air pipe joint 6, and plays a role of sealing gas.
Specifically, the inner end of the joint groove 7 communicates with one end of the main air passage 4, and the main air passage 4 is horizontally provided inside the front mold 1.
Specifically, a plurality of branch air ducts 5 are mutually and vertically communicated with the main air duct 4 at intervals, the upper ends of the branch air ducts 5 are communicated with the main air duct 4, and the lower ends of the branch air ducts 5 are flush with the upper surface of the front mold core 2.
Specifically, the air needle assembly comprises an air needle tail end 8, an air needle rod body 9, an air needle front end 10, a sealing ring 11 arranged on the upper side of the air needle tail end 8, and a spring 12 sleeved on the upper part of the air needle rod body 9.
Specifically, the two sides of the lower part of the air needle rod body 9 are provided with concave strip-shaped grooves 13, the front end 10 of the air needle is a round table, and the periphery of the round table and the lower end of the air needle rod body 9 form a concave annular groove 14.
Specifically, the front mold core 2 is internally provided with a spring cavity 21 matched with the spring 12 and the air needle tail end 8, an air needle cavity 22 matched with the air needle rod body 9 and an air collection cavity 23 matched with the strip-shaped groove 13 and the annular groove 14, and the spring cavity 21, the air needle cavity 22 and the air collection cavity 23 form an air groove (the air groove has the double functions of circulating air and moving the air needle assembly). The surface of the front mould 1 between the upper end of the spring cavity 21 and the lower end port of the air dividing channel 5 is provided with a sealing groove 15, and a sealing ring 11 is arranged in the sealing groove 15.
In this embodiment, specifically, the outer sides of the upper steps 311 of the two-step transverse channels 31 are respectively communicated with an upward channel 32 and a downward channel 33, the outer sides of the lower steps 312 of the two-step transverse channels 31 are respectively communicated with another upward channel 32 and a downward channel 33, the lower ends of the downward channels 33 are respectively communicated with an inverted hook-shaped channel 34, and the interface between the upper steps 311 and the lower steps 312 is communicated with a third downward channel 33. The upper surfaces of the upper steps 311 are respectively connected with the lower ports of the two air collecting cavities 23, the upper surface of the near outer side of the lower step 312 is connected with the lower port of one air collecting cavity 23, and the end surface of the front end 10 of the air needle can penetrate out of the lower port of the air collecting cavity 23 to contact the upper surfaces of the upper steps 311 and the lower step 312.
The working principle of the scheme is as follows: when injection molding is completed, an external air pump is connected with an air pipe joint 6 through an air pipe (not shown in the figure) in the process of opening the mold (the front mold 1 and the rear mold are gradually opened), air flow pushes an air needle tail end 8 to move downwards through an air dividing passage 5 by a main air passage 4 and compress a spring 12, meanwhile, the air flow enters an air needle cavity 22 through a spring cavity 21 and a circumferential gap of the air needle tail end 8, a circumferential gap of an air needle rod body 9, a strip-shaped groove 13 and an air collecting cavity 23 through the strip-shaped groove 13 and an annular groove 14, air is blown to the upper surface of a plastic part (namely an injection molding part, namely a plastic part formed after cooling a product mold cavity) from the lower port of the air collecting cavity 23 around the circumferential edge 10 of the air needle, and meanwhile, the end part of the air needle front end 10 is pressed downwards against the upper surface of the plastic part, and the plastic part rapidly falls off from the front mold core 2 under the double actions of air needle and blowing.
In summary, the technical scheme of the utility model has the following beneficial effects:
the utility model solves the problem that the plastic part with the bent barbs cannot be taken down when being stuck in the front mould during demoulding. According to the special structure of the plastic part with the barb and bending, a plurality of air needle mechanisms are arranged in the front mold core and the front mold at the upper side of the transverse cavity channel of the product mold cavity, a plurality of air collecting cavities (the air collecting cavities are combined with the air collecting cavities to collect air and blow downwards through the strip-shaped grooves and the annular grooves) are designed in the air needle mechanisms, and the air collecting cavities have two functions: one is to make the air needle front end terminal surface can wear out the lower port of gas collection chamber and contact downwards and promote the upper surface of product die cavity, another is to blow to the upper surface of product die cavity from the lower port of gas collection chamber simultaneously, the mode of air needle + blowing has bigger thrust like this, can ensure that the plastic part can not with the front mould adhesion, can guarantee simultaneously that the plastic part surface can not be by the air needle front end top injury again, thereby ensured product appearance quality, this scheme has simple structure, reasonable in design, work efficiency is high, do not harm the product outward appearance, guarantee the advantage of bending plastic part smooth production with the barb.
The above-described embodiments do not limit the scope of the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the above embodiments should be included in the scope of the present utility model.
Claims (10)
1. Plastic part injection molding device based on add barb of bending, including locating the front mould of panel downside, inlay and locate the front mould core of the lower part in the front mould, locate the back mould of front mould downside, locate the back mould core of upper portion in the back mould be equipped with product die cavity, its characterized in that between front mould core, the back mould core: the product die cavity comprises at least two stepped transverse cavity channels, a plurality of upward cavity channels and a plurality of downward cavity channels, wherein the lower end of one of the downward cavity channels on the outer side is an inverted hook-shaped cavity channel, and a plurality of air needle mechanisms are arranged in the front die core and the front die on the upper side of the transverse cavity channels.
2. The plastic part injection molding device based on bending and barb adding according to claim 1, wherein: the air needle mechanisms comprise a common input end, a common main air passage, a plurality of air dividing passages, a plurality of air needle assemblies and a plurality of air grooves.
3. The plastic part injection molding device based on bending and barb adding according to claim 2, wherein: the input end comprises an air pipe joint and a joint groove which is arranged on one side of the front die and is concave inwards.
4. A plastic part injection molding apparatus based on bending and barb addition as defined in claim 3, wherein: the joint groove is of a T-shaped column structure with the large outside and the small inside, and the joint groove is matched with the air pipe joint.
5. The plastic part injection molding device based on bending and barb adding according to claim 4, wherein: the inner end of the joint groove is communicated with one end of the main air passage, and the main air passage is horizontally arranged in the front die.
6. The plastic part injection molding device based on bending and barb adding according to claim 5, wherein: the air dividing passages are vertically communicated with the main air passage at intervals, the upper ends of the air dividing passages are communicated with the main air passage, and the lower ends of the air dividing passages are flush with the upper surface of the front mold core.
7. The plastic part injection molding device based on bending and barb adding according to claim 6, wherein: the air needle assembly comprises an air needle tail end, an air needle rod body, an air needle front end, a sealing ring arranged on the upper side of the air needle tail end and a spring sleeved on the upper portion of the air needle rod body.
8. The plastic part injection molding device based on bending and barb adding according to claim 7, wherein: the lower part both sides of the gas needle body are equipped with indent bar groove, the gas needle front end is the round platform, and round platform week side and gas needle body's lower extreme form indent ring channel.
9. The plastic part injection molding device based on bending and barb adding according to claim 8, wherein: the front mold core is internally provided with a spring cavity matched with the spring and the tail end of the air needle, an air needle cavity matched with the air needle rod body and an air collecting cavity matched with the strip-shaped groove and the annular groove, wherein the air groove is formed by the spring cavity, the air needle cavity and the air collecting cavity; and a sealing groove is arranged on the surface of the front mould between the upper end of the spring cavity and the port at the lower end of the air dividing channel, and the sealing ring is arranged in the sealing groove.
10. The plastic part injection molding device based on bending and barb adding according to claim 9, wherein: the outer sides of the upper steps of the transverse cavity channels of the two steps are respectively communicated with one upward cavity channel and a downward cavity channel, the outer sides of the lower steps of the transverse cavity channels of the two steps are respectively communicated with the other upward cavity channel and the downward cavity channel, the lower ends of the downward cavity channels are communicated with the barb-shaped cavity channels, and the interface between the upper steps and the lower steps is communicated with the third downward cavity channel; the upper surface of the upper ladder is respectively connected with the lower ports of the two air collecting cavities, the upper surface of the near outer side of the lower ladder is connected with the lower port of one air collecting cavity, and the end face of the front end of the air needle can penetrate out of the lower port of the air collecting cavity to contact the upper surfaces of the upper ladder and the lower ladder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322453300.2U CN220720174U (en) | 2023-09-08 | 2023-09-08 | Plastic part injection molding device based on bending and barb adding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322453300.2U CN220720174U (en) | 2023-09-08 | 2023-09-08 | Plastic part injection molding device based on bending and barb adding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220720174U true CN220720174U (en) | 2024-04-05 |
Family
ID=90490306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322453300.2U Active CN220720174U (en) | 2023-09-08 | 2023-09-08 | Plastic part injection molding device based on bending and barb adding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220720174U (en) |
-
2023
- 2023-09-08 CN CN202322453300.2U patent/CN220720174U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220720174U (en) | Plastic part injection molding device based on bending and barb adding | |
| CN211071826U (en) | Powder metallurgy forming die | |
| CN215703734U (en) | Air exhaust structure for mold cavity | |
| CN207549317U (en) | A kind of rubber high-voltage shield mold improved structure | |
| CN218286562U (en) | Lampshade mould capable of being vacuumized | |
| CN218019957U (en) | Cup drawing of patterns ejecting device | |
| CN217169969U (en) | Secondary ejection mechanism for mold production | |
| CN214605754U (en) | Injection mold with cooling water channel | |
| CN206446068U (en) | A kind of Injection moulded part separator | |
| CN214773631U (en) | Automatic blowing and demolding mold | |
| CN216373183U (en) | LED external member that possesses exhaust function moulds shell mould | |
| CN214521626U (en) | Production is with injection mold who has quick cooling structure | |
| CN214726041U (en) | Efficient multi-cavity injection mold | |
| CN212707829U (en) | Novel ejector pin exhaust structure of plastic mould | |
| CN218660040U (en) | Vulcanizing mold for manufacturing rubber seat | |
| CN218053763U (en) | Die for producing sealing gasket of brake lamp | |
| CN209649381U (en) | A kind of mold with exhaust blowing structure | |
| CN212241976U (en) | Active exhaust device for in-mold insert | |
| CN218196378U (en) | Rubber buffer drawing of patterns tool of big length-diameter ratio | |
| CN218876163U (en) | Mould with automatic air exhaust device | |
| CN219427361U (en) | Soft plastic dust cover mould moulds plastics | |
| CN217454822U (en) | Injection mold convenient to unloading | |
| CN212472352U (en) | A quick shaping module for bottle blow molding | |
| CN213291020U (en) | Die set | |
| CN218857597U (en) | Cell-phone is decorated circle mould benevolence evacuation structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |